Verse 20

चित्तमेव नरो नान्यदिति यत्प्रतिपादितम् ।लक्षणादिविचारेण कच्चित्स्मरसि साधु तत्

In plain words

That which was taught -- 'man is citta alone, nothing else' -- through the inquiry into its marks and the rest, do you remember that well?